Science 

Making Successful Communication

Communication means exchange of views. In order to establish Communication we need a transmitter, a receiver and a media. A low frequency signal may be audio, video or other type is modulated inside the transmitter and through a media directed towards the receiver where signal is recovered after detection. The purpose of communication is to convey information from one place to other. Typical Communication Systems.        Communication plays a vital role in flying station. With the help of signal and radio equipment.  ‘Communication links’ are established between ground to air, air…

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Science 

Modulated Terms of Signal

Signal can be modulated in terms of: (a)       Amplitude Modulation (AM).       When the amplitude of high frequency carrier wave is changed in accordance with the intensity of signal, it is called amplitude modulation. In amplitude modulation only the amplitude of the carrier wave is changed in accordance with intensity of signal However, the frequency of modulated wave is remains the same. i.e carrier frequency. Fig shows the principle of amplitude modulation. Fig. ‘b’ shows the audio electrical signal whereas fig ‘a’ shows carrier wave constant amplitude. fig ‘c’ shows amplitude modulated…

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